.ant-tabs{
    .ant-tabs-bar{
        margin:0;
        background:#fafafa;
    }   
}
.ant-tabs.ant-tabs-card .ant-tabs-card-bar .ant-tabs-tab {
    margin:0px;
    border:1px solid #fafafa;
    border-top:1px solid #e8e8e8;
    border-bottom:1px solid #e8e8e8;
}
.ant-tabs.ant-tabs-card .ant-tabs-card-bar .ant-tabs-tab-active{
    border:1px solid #e8e8e8;
    border-bottom:1px solid white;
}